In`su*la"tion(?), n. 1. The act of insulating, or the state of being insulated; detachment from other objects; isolation.
(Elec. & Thermotics) The act of separating a body from others by nonconductors, so as to prevent the transfer of electricity or of heat; also, the state of a body so separated.
3. The material or substance used to insulate from either electrical or thermal conduction; as, fiberglass is used as thermal
insulation in the walls and roofs of houses.
[Webster 1913 Suppl. +PJC]
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Fri 14th December 2018